What do dendrites do in a neuron?

Dendrites are specialized structures of a neuron that play a crucial role in the communication process among nerve cells. Specifically, their primary function is to receive incoming signals from other neurons, facilitating the transmission of information throughout the nervous system.

When a neuron is activated, it receives neurotransmitter signals from the axons of other neurons via the dendrites. These signals are then processed and, if the signal is strong enough, contribute to the generation of an action potential, which is transmitted down the neuron's axon to communicate with other neurons. This reception of signals is pivotal for various functions, including sensory perception, motor actions, and cognitive processes.

In contrast to the other functions listed, dendrites are not responsible for sending messages to the axon, protecting the neuron from damage, or regenerating damaged neurons, highlighting their specific and vital role in receiving information.